These slim-profile aluminium windows are outward-opening casement units certified to NFRC, AS2047, and CE standards. They are built for architects, distributors, and project buyers who require slender frame profiles with certified thermal and structural performance. DERCHI independently develops and customizes the transmission boxes, and the product line carries 100+ national patents alongside 50+ industry honors.
- U-factor of 0.23 and SHGC of 0.20 for energy-efficient building envelopes
- Outward opening and awning configurations for residential and commercial applications
- 70,000 m² factory with 600+ employees and 600,000+ m² annual output
- 700+ distributors across 100+ countries with 200,000+ successful installation cases
Product Details
The slim profile aluminium windows are built as aluminum casement windows with a 118MM frame width and 1.8MM profile thickness, using DERCHI insulation strips between the aluminum profiles. The standard glass configuration is double tempered glass with argon gas (5mm+27A+5mm) separated by a PVDF aluminum strip. The production process runs through surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening panel installation, frame and casing assembly, troubleshooting and sealing, and packing. The windows operate with outward opening or awning movement, driven by a DERCHI-developed 13-inch flat open friction hinge, a DERCHI-customized transmission box, and a WEHAGE lock point and lock seat system with six-point locking. DERCHI supplies the complete window system including profile, hardware, accessories, glass, and finished products.
Seven glass configurations are available—single, tempered, double-glazed, triple, insulating, laminated, and frosted—and color finishes include two PVDF options (Retro Green, Mint Gold) plus ten stock colors across ten customizable layout configurations combining fixed panels, casement sashes, and awning openings. Procurement teams should select the appropriate insulation tier for energy compliance and confirm size and weight feasibility for large openings before specification. Post-purchase traceability and documentation access should be requested for project handover. Delivery takes 25–35 days after deposit and drawing confirmation, products carry NFRC, CE, AS2047, CSA, and ISO9001 authorizations with 100% full inspection before shipment, and a 10-year quality warranty covers frame unfading and hardware operation, with engineering and supervising service available to guide installation.
Product Features
- 118MM frame width with 1.8MM profile thickness fits slim-profile installations where wall reveal depth is limited.
- Outward Opening / Awning configuration is the right choice when interior clearance for inward swing is unavailable or when rain-shielded ventilation is needed.
- WEHAG no-base handle in black, silver, or antique bronze finish lets you match hardware color to the interior or exterior design scheme.
- Patented Black Six Point Lock addresses higher security requirements on ground-floor or accessible openings.
- 13-inch flat open friction hinge provides controlled outward sash stay without external friction stays.
- Standard DERCHI insulation strip pairs with a U-factor of 0.23 and SHGC of 0.20 for energy-code compliance in heating-dominated climates.
- Tempered glass with argon gas fill is suitable for safety glazing and improved thermal performance.
- PVDF surface finish works best for exterior color retention in UV-exposed or coastal environments.
- Water tightness at 700Pa and air tightness at 1.2 m³/(m·h) suit exposed facades subject to wind-driven rain.
- Sound insulation of 35 dB fits urban or roadside locations requiring acoustic comfort.
Customizable Styles
- Glass configuration: seven orderable types — single, tempered, double-glazed, triple, insulating, laminated, and frosted glass.
- Standard double tempered glass with argon gas 5mm+27A+5mm and PVDF aluminum strip between panes.
- Color finishes: two PVDF options (Retro Green, Mint Gold) and ten stock color options.
- Layout configurations: ten options including fixed panels, casement sashes, and awning openings.
- Opening way: outward opening or awning.
- Handle finish: WEHAG handle in Black or Silver.
- Optional package: New 48 Pack or New 88 Pack.
- Price is based on shop drawing, frame color, glass type, and glass thickness.
Hardware Accessories
- WEHAG handle available in black, silver, and antique bronze finishes
- WEHAG hinge paired with DERCHI independently developed 13-inch flat open friction hinge
- Black Six Point Lock protected by invention patent
- WEHAG lock point and lock seat system integrated with the six-point locking mechanism
- DERCHI customized transmission box and independently developed handle designs
- Full window system supply including profile, hardware, accessories, glass, and finished products
- 10-year quality warranty covering proper functioning of hardware and accessories
Basic Parameters
| Performance Dimension | Product Value | Meaning | Test Evidence to Request |
|---|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; Standard DERCHI insulation strip | Thermal performance is compared using the declared rating, test method, specimen configuration, and project boundary conditions. | Request the applicable thermal test or simulation report and the declared product configuration. |
| Wind Pressure Resistance | 5K Pa | Wind pressure resistance is reviewed against the specified test pressure, specimen size, anchorage, and acceptance criteria. | Request the wind-pressure test report and confirm the tested specimen and installation conditions. |
| Water Tightness | 700Pa | Water tightness is reviewed against the test pressure, spray exposure, specimen configuration, and leakage criteria. | Request the water-penetration test report and confirm the tested pressure and assembly configuration. |
| Air Tightness | 1.2 m³/(m·h) | Air tightness is reviewed against the pressure differential, specimen area, reporting units, and tested configuration. | Request the air-leakage test report and confirm its pressure and specimen configuration. |
| Sound Insulation | 35 dB | Sound insulation is compared using the stated laboratory method, specimen construction, glazing, and reported acoustic metric. | Request the acoustic test report and confirm that the tested construction matches the proposed configuration. |
Product Specifications
| Specification | Value |
|---|---|
| Glass | Double Tempered Glass with argon gas 5mm+27A+5mm with PVDF Aluminum Strip between double glass |
| Profile Thickness | 1.8 mm |
| Frame Width | 118 mm |
| Opening Way | Outward Opening / Awning |
| Handle | WEHAG Handle in Black and Silver |
| Hinge | WEHAG Hinge |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip |
| Optional Package | New 48 Pack / New 88 Pack |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
| Warranty | 10 years quality warranty |
- Shop drawing
- Frame color
- Glass type and thickness
- Deposit confirmation
Advantages
- 15+ years of experience in aluminum windows and doors manufacturing with a 70,000+ m² factory, 600+ employees, and a 4,000 m² showroom.
- 600,000+ m² annual output across 200,000+ successful cases.
- 100% full inspection before shipment.
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001, with 100+ national patents and 50+ industry honors.
- 20+ experts R&D team with OEM/ODM customization capability.
- DERCHI independently develops and customizes transmission boxes and hardware components.
- Engineering and supervising service to guide installation.
- One-stop customer service from ordering to shipment.
- 700+ distributors trading with customers in 100+ countries.
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Coastal or high-precipitation commercial buildings | Aluminium frame for exterior coastal applications; water resistance class 9A (600 Pa). | Confirm site-specific wind-load and corrosion-protection requirements. |
| High-rise commercial structures | Wind resistance class C4 (1600 Pa). | Confirm floor-specific structural anchoring and wind-load requirements. |
| Buildings near traffic corridors | Acoustic insulation 44–46 dB. | Confirm project-specific acoustic insulation target. |
| Office buildings | Aluminium casement window with concealed hinges and drainage options. | Confirm opening direction and ventilation configuration. |
| Hotels | Burglarproof and fireproof safety variants available. | Confirm acoustic and safety requirements. |
| Apartments and residential buildings | Aluminium casement window with fire resistance classes EI15, EI30, EI60. | Confirm fire-safety and egress requirements. |
| Villa projects | Slim profile aluminium frame with Classic, Ferro, and Cubic design variants. | Confirm whole-house customization scope and finish schedule. |
| Home offices | U-value 1.4 for thermal insulation. | Confirm thermal comfort and daylighting requirements. |
| Whole house customization | Custom size options with RAL color finishes. | Confirm room-by-room configuration and finish schedule. |
FAQ
What must be confirmed technically?
Delivery of 25–35 days begins only after both the deposit and drawing are confirmed.
What should buyers prepare for volume procurement?
The window system is supplied as a complete package including profile, hardware, accessories, and glass.
What documentation is required for quoting?
A shop drawing or window schedule is required for quoting, and price is calculated based on the buyer's specific requirements.
What quality assurance applies to volume orders?
100% full inspection is conducted before shipment, and a 10-year quality warranty covers the product.
Is installation support available for project buyers?
Engineering and supervising service for installation is provided alongside finished products ready for installation.
Which test reports or certification documents must be confirmed for the project?
Request thermal documentation, structural test results, and acoustic measurement reports from the supplier before finalizing the specification.
